X-ray phase imaging with a grating interferometer.

By Timm Weitkamp, A. Diaz, Christian David, Franz Pfeiffer, Marco Stampanoni, Peter Cloetens, E. Ziegler. Optics Express, 2005

1,219 citations recorded by the source corpus.

Using a high-efficiency grating interferometer for hard X rays (10-30 keV) and a phase-stepping technique, separate radiographs of the phase and absorption profiles of bulk samples can be obtained from a single set of measurements. Tomographic reconstruction yields quantitative three-dimensional maps of the X-ray refractive index, with a spatial resolution down to a few microns. The method is mechanically robust, requires little spatial coherence and monochromaticity, and can be scaled up to large fields of view, with a detector of correspondingly moderate spatial resolution. These are important prerequisites for use with laboratory X-ray sources.

Subfields: Geophysics, Nuclear and High Energy Physics, Radiation

View Paper: https://www.semanticscholar.org/paper/3cbe1b3cd41a05338e6ae8eef6bc202d0f8b1838

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Citations in the corpus

• The evolution of image reconstruction for CT—from filtered back projection to artificial intelligence (2018, methodology): “These novel imaging methods make use of these wave optical characteristics of x-rays, by applying for example a grating interferometer to x-ray imaging [93 – 98].”